diff --git a/ChangeLog b/ChangeLog
index f4efb64..4a67166 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -3,8 +3,10 @@ Latest v0.4
 * (should) do not freeze Firefox
 * auto hint fonts, good for Chrome
 * many fixes for IE
+(Why no fix for Opera? Because everything has been fine)
 * [Experimental] adjust widths of fonts according to PDF
 
+
 v0.3
 2012.09.16
 
diff --git a/TODO b/TODO
index 8d88412..5fd7f32 100644
--- a/TODO
+++ b/TODO
@@ -1,3 +1,5 @@
+fix auto hint
+
 bug found in baidu(ubuntu...), bug_chn
 
 precise link dest
diff --git a/pdf2htmlEX.1.in b/pdf2htmlEX.1.in
index f2ccd1e..18917d3 100644
--- a/pdf2htmlEX.1.in
+++ b/pdf2htmlEX.1.in
@@ -96,6 +96,8 @@ For some versions of Firefox, however, there will be a problem when the font siz
 .TP
 .B --auto-hint <0|1> (Default: 1)
 If set to 1, hints will be generated for the fonts.
+
+This switch is experimental which may break other things.
 .TP
 .B --tounicode <-1|0|1> (Default: 0)
 A ToUnicode map may be provided for each font in PDF which indicates the 'meaning' of the characters. However often there is better "ToUnicode" info in Type 0/1 fonts, and sometimes the ToUnicode map provided is wrong. 
diff --git a/src/ffw.c b/src/ffw.c
index a9c9799..c5b24ee 100644
--- a/src/ffw.c
+++ b/src/ffw.c
@@ -276,7 +276,6 @@ void ffw_metric(double * ascent, double * descent, int * em_size)
 
     info->os2_typolinegap = 0;
     info->linegap = 0;
-
 }
 
 /*
diff --git a/src/pdf2htmlEX.cc b/src/pdf2htmlEX.cc
index f850129..77f1c97 100644
--- a/src/pdf2htmlEX.cc
+++ b/src/pdf2htmlEX.cc
@@ -74,7 +74,7 @@ void parse_options (int argc, char **argv)
         .add("veps", &param.v_eps, 1.0, "max tolerated vertical offset (in pixels)")
         .add("space-threshold", &param.space_threshold, (1.0/8), "distance no thiner than (threshold * em) will be considered as a space character")
         .add("font-size-multiplier", &param.font_size_multiplier, 1.0, "setting a value greater than 1 would increase the rendering accuracy")
-        .add("auto-hint", &param.auto_hint, 1, "Whether to generate hints for fonts")
+        .add("auto-hint", &param.auto_hint, 0, "[Experimental] Whether to generate hints for fonts")
         .add("tounicode", &param.tounicode, 0, "Specify how to deal with ToUnicode map, 0 for auto, 1 for forced, -1 for disabled")
         .add("space-as-offset", &param.space_as_offset, 0, "treat space characters as offsets")